1
defuse sth
defuse 是及物动词，本义是拆除炸弹等的引信；也可引申为缓和、平息紧张局势或冲突。
The bomb squad carefully defused the device.
拆弹小组小心地拆除了那枚装置的引信。
拆除（炸弹等的）引信；去掉引信
defuses — third person singular of defuse
先理解核心含义，再看它在真实句子里的用法。
拆除（炸弹等的）引信；去掉引信
To remove the fuse or triggering device from a bomb so that it cannot explode.
The bomb squad carefully defused the device.
拆弹小组小心地拆除了那枚装置的引信。
拆除(如炸弹的)引信。
To remove the fuse from (e.g. a bomb).
使变得不那么危险、紧张或敌对。
To make less dangerous, tense, or hostile.
defuse
Base
原形
defuses
3rd person
第三人称单数
defusing
-ing
现在分词
defused
Past
过去式
defused
Past participle
过去分词
The technician defuses the bomb carefully.
技术人员小心地拆除炸弹的引信。
The teacher defused the argument between the two students.
老师平息了两个学生之间的争论。
The police are defusing the device right now.
警察现在正在拆除这个装置的引信。
defuse 既可指拆下引信，也可指缓和、平息（紧张局面）。
A trained technician defuses explosive devices in the city every week.
一名训练有素的技术人员每周都会拆除城市里的爆炸装置。
The police team defused the suspicious package before the street was reopened.
警察小组在街道重新开放前拆除了可疑包裹的引信。
Defusing a landmine safely takes time and great care.
安全拆除地雷的引信需要时间和极大的耐心。
defuse 是及物动词，本义是拆除炸弹等的引信；也可引申为缓和、平息紧张局势或冲突。
The bomb squad carefully defused the device.
拆弹小组小心地拆除了那枚装置的引信。
Not this
The rumor quickly defused across the school.
Use this
The rumor quickly diffused across the school.
“defuse”是及物动词，意为“拆除引信；缓和（局势）”，不能表示“传播、扩散”；表示消息或谣言传开应用不及物动词“diffuse”。这里把“defused”改成“diffused”后句子结构和意思都正确。
Not this
The technician defused the fuse of the bomb.
Use this
The technician defused the bomb.
“defuse”本身已包含“拆除引信”的意思，宾语应是炸弹等装置，而不是“fuse（引信）”本身。受中文“拆除炸弹的引信”语序影响，学习者容易多写“the fuse of”，造成语义重复；去掉“the fuse of”即可。
Not this
He tried to defuse the angry customer.
Use this
He tried to calm the angry customer down.
“defuse”的宾语通常是“situation”“crisis”“tension”等抽象事物，不能直接接人。要表达“使某人平静下来”应用“calm sb down”或“placate sb”。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
拆除炸弹引信
The officer carefully defused the bomb before anyone was hurt.
警官小心地拆除了炸弹引信，才没有人受伤。
缓和局势
She told a joke to defuse the tense situation.
她讲了个笑话来缓和紧张局势。
缓和紧张情绪
His calm voice helped defuse the tension in the room.
他平静的声音帮助缓和了房间里的紧张情绪。
化解危机
Quick thinking by the manager defused the crisis.
经理的快速思考化解了危机。
化解冲突
The mediator tried to defuse the conflict between the two groups.
调解人试图化解两个群体之间的冲突。
平息愤怒
She acknowledged his frustration in order to defuse his anger.
她承认他的不满，以平息他的愤怒。
缓和局势
She tried to defuse the situation with a joke.
她试图用笑话缓和局势。
缓解紧张气氛
The manager's calm voice helped defuse tension in the meeting.
经理平静的声音帮助缓解了会议中的紧张气氛。
化解危机
Quick action by the negotiators defused a potential crisis.
谈判人员的迅速行动化解了一场潜在危机。
炸弹已被拆除。
In the video game Counter-Strike, when players successfully disarm the bomb, this line is played by the game's announcer.
在电子游戏《反恐精英》中，当玩家成功拆除炸弹时，游戏播音员会说出这句话。
Use defuses naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
拆掉引信(de+fuse)，危机自然平息；记住“去引信”就是“平息”。
语域：neutral 常见场景：拆弹或安全处理、缓和紧张局势或冲突 该词通常用于“拆掉引信”这一本义，也多见于“缓和局势、消除危机”的比喻用法；语域中性，日常和正式场合都比较常见。
这些词都以 /juːz/ 音结尾，和 defuse 押韵。注意：形容词 diffuse 读 /dɪˈfjuːs/，名词 refuse 读 /ˈrefjuːs/，只是拼写相似，读音不同。
Dictionary facts from ECDICT, WIKTIONARY.